{"product_id":"square-d-a1b240-circuit-breaker","title":"Square D | A1B240 | Circuit Breaker | 40A | 2-Pole | 240V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eProtect critical circuits with precision using the Square D A1B240 40A two-pole 240V bolt-on circuit breaker. Engineered for maintenance, retrofit, and replacement projects, this breaker delivers dependable performance when exact specifications matter and secure mounting in compatible Square D panels is essential.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 40 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 2-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 240 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Bolt-On\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eCompatibility note:\u003c\/strong\u003e Confirm fit and ratings before ordering. Part number is the best reference for compatibility.\u003c\/p\u003e \u003ch3\u003eWhy this Square D breaker stands out\u003c\/h3\u003e\n\u003cp\u003eThis A1B240 bolt-on breaker is designed for secure, vibration-resistant mounting in panels that require a 2-pole, 240V protection device. Built by Square D, it offers reliable overcurrent protection for multiwire and branch circuits, helping to safeguard equipment and wiring in residential, commercial, or light industrial environments where exact spec matching is critical.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePanel maintenance: replace worn or damaged breakers in 240V, 2-pole circuits with a like-for-like, bolt-on solution.\u003c\/li\u003e \u003cli\u003eRetrofit projects: upgrade or retrofit panels that require a 40A, 2-pole bolt-on breaker to maintain proper protection and code compliance.\u003c\/li\u003e \u003cli\u003eNew installations within compatible Square D load centers: ensure you have the right form factor and voltage rating for reliable performance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and safety tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePower down the main and verify absence of voltage before handling any breakers.\u003c\/li\u003e \u003cli\u003eMatch amperage, number of poles, voltage, and bolt-on mounting to your panel’s requirements, using the A1B240 as the compatibility reference.\u003c\/li\u003e \u003cli\u003eWhen in doubt about compatibility or wiring, consult a licensed electrician to ensure proper installation and protection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46424396169378,"sku":"A1B240","price":310.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_a085eff1-75dd-47ee-b131-4c8df8f0489b.png?v=1765492976","url":"https:\/\/www.ampstate.com\/products\/square-d-a1b240-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}